diff --git a/api/modules/video.ts b/api/modules/video.ts
index a6a284e..134d2a1 100644
--- a/api/modules/video.ts
+++ b/api/modules/video.ts
@@ -1,35 +1,24 @@
 // api/modules/video.ts
-/**
- * 视频相关 API
- * 完全保持原项目接口路径和调用方式
- */
-
 import { createRequestClient } from '../request'
 import { SERVICE_MAP } from '../config'
-import type {
-  ICheckVideoRequest,
-  ICheckVideoResponse,
-  ISaveCoursePositionRequest,
-  ISaveCoursePositionResponse,
-  IAddErrorCourseRequest,
-  IAddErrorCourseResponse
-} from '@/types/video'
+import type { IApiResponse } from '../types'
+import type { IVideoCheckResponse } from '@/types/video'
 
 const client = createRequestClient({ baseURL: SERVICE_MAP.MAIN })
 
 /**
- * 视频相关 API
+ * 视频相关API
  */
 export const videoApi = {
   /**
-   * 检查视频并获取播放凭证
-   * 原接口: sociology/course/checkVideo
-   * 
-   * @param data 视频信息(id, video, courseId, catalogueId, chapterId 等)
-   * @returns 视频详细信息,包含 playAuth, videoId, m3u8Url, videoUrl 等
+   * 获取视频播放信息
+   * 接口: sociology/course/checkVideo
+   * 方法: POST
    */
-  checkVideo(data: ICheckVideoRequest) {
-    return client.request<ICheckVideoResponse>({
+  checkVideo(data: {
+    id: number
+  }) {
+    return client.request<IVideoCheckResponse>({
       url: 'sociology/course/checkVideo',
       method: 'POST',
       data
@@ -37,14 +26,15 @@ export const videoApi = {
   },
 
   /**
-   * 保存课程播放位置
-   * 原接口: sociology/course/saveCoursePosition
-   * 
-   * @param data 包含 videoId 和 position(秒数)
-   * @returns 保存结果
+   * 保存播放进度
+   * 接口: sociology/course/saveCoursePosition
+   * 方法: POST
    */
-  saveCoursePosition(data: ISaveCoursePositionRequest) {
-    return client.request<ISaveCoursePositionResponse>({
+  saveCoursePosition(data: {
+    videoId: number
+    position: number
+  }) {
+    return client.request<IApiResponse>({
       url: 'sociology/course/saveCoursePosition',
       method: 'POST',
       data
@@ -52,14 +42,16 @@ export const videoApi = {
   },
 
   /**
-   * 记录 iOS 不支持的视频
-   * 原接口: medical/course/addErrorCourse
-   * 
-   * @param data 包含 chapterId, videoId, sort
-   * @returns 记录结果
+   * 报告错误视频
+   * 接口: medical/course/addErrorCourse
+   * 方法: POST
    */
-  addErrorCourse(data: IAddErrorCourseRequest) {
-    return client.request<IAddErrorCourseResponse>({
+  addErrorCourse(data: {
+    chapterId: number
+    videoId: number
+    sort: number
+  }) {
+    return client.request<IApiResponse>({
       url: 'medical/course/addErrorCourse',
       method: 'POST',
       data
diff --git a/components/course/ChapterList.vue b/components/course/ChapterList.vue
index dd7801d..8a3eaf0 100644
--- a/components/course/ChapterList.vue
+++ b/components/course/ChapterList.vue
@@ -129,6 +129,7 @@ interface Props {
   chapters: IChapter[]
   catalogue: ICatalogue
   userVip: IVipInfo | null
+  showRenewBtn?: boolean
 }
 
 const props = defineProps<Props>()
@@ -136,6 +137,8 @@ const props = defineProps<Props>()
 const emit = defineEmits<{
   click: [chapter: IChapter],
   purchase: [catalogue: ICatalogue],
+  renew: [catalogue: ICatalogue],
+  toVip: [catalogue: ICatalogue],
 }>()
 
 /**
@@ -153,6 +156,16 @@ const goToVip = () => {
   emit('toVip', props.catalogue)
 }
 
+// 续费/复读
+const handleRenew = () => {
+  emit('renew', props.catalogue)
+}
+
+// 领取免费课程
+const handleGetFreeCourse = () => {
+  emit('purchase', props.catalogue)
+}
+
 /**
  * 判断章节是否可以访问
  */
diff --git a/components/video-player/components/ControlBar.vue b/components/video-player/components/ControlBar.vue
new file mode 100644
index 0000000..4982e25
--- /dev/null
+++ b/components/video-player/components/ControlBar.vue
@@ -0,0 +1,162 @@
+<template>
+  <view class="control-bar" :class="{ 'control-bar--visible': showControls }" @click.stop>
+    <view class="control-bar__top">
+      <!-- 进度条 -->
+      <ProgressBar
+        :current="currentTime"
+        :duration="duration"
+        @seek="handleSeek"
+      />
+    </view>
+
+    <view class="control-bar__bottom">
+      <!-- 播放/暂停按钮 -->
+      <view class="control-button" @click="togglePlay">
+        <text class="icon">{{ isPlaying ? '⏸' : '▶️' }}</text>
+      </view>
+
+      <!-- 时间显示 -->
+      <view class="time-display">
+        <text>{{ formatTime(currentTime) }} / {{ formatTime(duration) }}</text>
+      </view>
+
+      <view class="control-bar__right">
+        <!-- 速率控制 -->
+        <SpeedControl
+          :rate="playbackRate"
+          @change="handleSpeedChange"
+        />
+
+        <!-- 音量控制 -->
+        <VolumeControl
+          :volume="volume"
+          @change="handleVolumeChange"
+        />
+
+        <!-- 全屏按钮 -->
+        <view class="control-button" @click="toggleFullscreen">
+          <text class="icon">{{ isFullscreen ? '⛶' : '⛶' }}</text>
+        </view>
+      </view>
+    </view>
+  </view>
+</template>
+
+<script setup lang="ts">
+import { ref } from 'vue'
+import ProgressBar from './ProgressBar.vue'
+import SpeedControl from './SpeedControl.vue'
+import VolumeControl from './VolumeControl.vue'
+
+interface Props {
+  currentTime: number
+  duration: number
+  isPlaying: boolean
+  isFullscreen: boolean
+  playbackRate: number
+  volume: number
+  showControls: boolean
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  currentTime: 0,
+  duration: 0,
+  isPlaying: false,
+  isFullscreen: false,
+  playbackRate: 1.0,
+  volume: 100,
+  showControls: true
+})
+
+const emit = defineEmits<{
+  'toggle-play': []
+  'seek': [time: number]
+  'toggle-fullscreen': []
+  'speed-change': [rate: number]
+  'volume-change': [volume: number]
+}>()
+
+const formatTime = (seconds: number): string => {
+  if (!seconds || isNaN(seconds)) return '00:00'
+
+  const mins = Math.floor(seconds / 60)
+  const secs = Math.floor(seconds % 60)
+
+  return `${mins.toString().padStart(2, '0')}:${secs.toString().padStart(2, '0')}`
+}
+
+const togglePlay = () => {
+  emit('toggle-play')
+}
+
+const handleSeek = (time: number) => {
+  emit('seek', time)
+}
+
+const toggleFullscreen = () => {
+  emit('toggle-fullscreen')
+}
+
+const handleSpeedChange = (rate: number) => {
+  emit('speed-change', rate)
+}
+
+const handleVolumeChange = (volume: number) => {
+  emit('volume-change', volume)
+}
+</script>
+
+<style lang="scss" scoped>
+.control-bar {
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
+  padding: 20rpx;
+  opacity: 0;
+  transition: opacity 0.3s;
+  z-index: 10;
+
+  &--visible {
+    opacity: 1;
+  }
+}
+
+.control-bar__top {
+  margin-bottom: 20rpx;
+}
+
+.control-bar__bottom {
+  display: flex;
+  align-items: center;
+  gap: 20rpx;
+}
+
+.control-bar__right {
+  display: flex;
+  align-items: center;
+  gap: 20rpx;
+  margin-left: auto;
+}
+
+.control-button {
+  width: 60rpx;
+  height: 60rpx;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  cursor: pointer;
+
+  .icon {
+    font-size: 40rpx;
+    color: #fff;
+  }
+}
+
+.time-display {
+  color: #fff;
+  font-size: 24rpx;
+  white-space: nowrap;
+}
+</style>
diff --git a/components/video-player/components/ProgressBar.vue b/components/video-player/components/ProgressBar.vue
new file mode 100644
index 0000000..188346b
--- /dev/null
+++ b/components/video-player/components/ProgressBar.vue
@@ -0,0 +1,183 @@
+<template>
+  <view class="progress-bar-container">
+    <view
+      class="progress-bar"
+      @touchstart="handleTouchStart"
+      @touchmove="handleTouchMove"
+      @touchend="handleTouchEnd"
+      @click="handleClick"
+    >
+      <!-- 背景轨道 -->
+      <view class="track"></view>
+
+      <!-- 已播放进度 -->
+      <view class="played" :style="{ width: playedPercent + '%' }"></view>
+
+      <!-- 拖动滑块 -->
+      <view class="thumb" :style="{ left: playedPercent + '%' }"></view>
+
+      <!-- 时间提示 -->
+      <view
+        v-if="showTimeTooltip"
+        class="time-tooltip"
+        :style="{ left: tooltipPosition + '%' }"
+      >
+        {{ formatTime(tooltipTime) }}
+      </view>
+    </view>
+  </view>
+</template>
+
+<script setup lang="ts">
+import { ref, computed } from 'vue'
+
+interface Props {
+  current: number
+  duration: number
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  current: 0,
+  duration: 0
+})
+
+const emit = defineEmits<{
+  seek: [time: number]
+}>()
+
+const isDragging = ref(false)
+const showTimeTooltip = ref(false)
+const tooltipPosition = ref(0)
+const tooltipTime = ref(0)
+const progressBarWidth = ref(0)
+
+const playedPercent = computed(() => {
+  if (!props.duration) return 0
+  return (props.current / props.duration) * 100
+})
+
+const formatTime = (seconds: number): string => {
+  if (!seconds || isNaN(seconds)) return '00:00'
+
+  const mins = Math.floor(seconds / 60)
+  const secs = Math.floor(seconds % 60)
+
+  return `${mins.toString().padStart(2, '0')}:${secs.toString().padStart(2, '0')}`
+}
+
+const handleTouchStart = (e: any) => {
+  isDragging.value = true
+  showTimeTooltip.value = true
+
+  // 获取进度条宽度
+  const query = uni.createSelectorQuery()
+  query.select('.progress-bar').boundingClientRect()
+  query.exec((res) => {
+    if (res[0]) {
+      progressBarWidth.value = res[0].width
+    }
+  })
+}
+
+const handleTouchMove = (e: any) => {
+  if (!isDragging.value || !progressBarWidth.value) return
+
+  const touch = e.touches[0]
+  const query = uni.createSelectorQuery()
+  query.select('.progress-bar').boundingClientRect()
+  query.exec((res) => {
+    if (res[0]) {
+      const rect = res[0]
+      const offsetX = touch.clientX - rect.left
+      const percent = Math.max(0, Math.min(100, (offsetX / rect.width) * 100))
+
+      tooltipPosition.value = percent
+      tooltipTime.value = (percent / 100) * props.duration
+    }
+  })
+}
+
+const handleTouchEnd = (e: any) => {
+  if (!isDragging.value) return
+
+  isDragging.value = false
+  showTimeTooltip.value = false
+
+  // 发送 seek 事件
+  emit('seek', tooltipTime.value)
+}
+
+const handleClick = (e: any) => {
+  const query = uni.createSelectorQuery()
+  query.select('.progress-bar').boundingClientRect()
+  query.exec((res) => {
+    if (res[0]) {
+      const rect = res[0]
+      const offsetX = e.detail.x - rect.left
+      const percent = Math.max(0, Math.min(100, (offsetX / rect.width) * 100))
+      const time = (percent / 100) * props.duration
+
+      emit('seek', time)
+    }
+  })
+}
+</script>
+
+<style lang="scss" scoped>
+.progress-bar-container {
+  width: 100%;
+  padding: 10rpx 0;
+}
+
+.progress-bar {
+  position: relative;
+  width: 100%;
+  height: 6rpx;
+  cursor: pointer;
+}
+
+.track {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background-color: rgba(255, 255, 255, 0.3);
+  border-radius: 3rpx;
+}
+
+.played {
+  position: absolute;
+  top: 0;
+  left: 0;
+  height: 100%;
+  background-color: #1989fa;
+  border-radius: 3rpx;
+  transition: width 0.1s;
+}
+
+.thumb {
+  position: absolute;
+  top: 50%;
+  transform: translate(-50%, -50%);
+  width: 24rpx;
+  height: 24rpx;
+  background-color: #fff;
+  border-radius: 50%;
+  box-shadow: 0 2rpx 8rpx rgba(0, 0, 0, 0.3);
+  transition: left 0.1s;
+}
+
+.time-tooltip {
+  position: absolute;
+  bottom: 30rpx;
+  transform: translateX(-50%);
+  padding: 8rpx 16rpx;
+  background-color: rgba(0, 0, 0, 0.8);
+  color: #fff;
+  font-size: 24rpx;
+  border-radius: 8rpx;
+  white-space: nowrap;
+  pointer-events: none;
+}
+</style>
diff --git a/components/video-player/components/SpeedControl.vue b/components/video-player/components/SpeedControl.vue
new file mode 100644
index 0000000..f81b420
--- /dev/null
+++ b/components/video-player/components/SpeedControl.vue
@@ -0,0 +1,122 @@
+<template>
+  <view class="speed-control">
+    <view class="speed-button" @click="toggleMenu">
+      <text class="speed-text">{{ currentRate }}x</text>
+      <text class="arrow">▼</text>
+    </view>
+
+    <view v-if="showMenu" class="speed-menu">
+      <view
+        v-for="rate in rateOptions"
+        :key="rate"
+        class="speed-option"
+        :class="{ active: rate === currentRate }"
+        @click="selectRate(rate)"
+      >
+        {{ rate }}x
+      </view>
+    </view>
+  </view>
+</template>
+
+<script setup lang="ts">
+import { ref, watch } from 'vue'
+
+interface Props {
+  rate: number
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  rate: 1.0
+})
+
+const emit = defineEmits<{
+  change: [rate: number]
+}>()
+
+const rateOptions = [0.5, 0.75, 1.0, 1.25, 1.5, 2.0]
+const showMenu = ref(false)
+const currentRate = ref(props.rate)
+
+watch(
+  () => props.rate,
+  (newRate) => {
+    currentRate.value = newRate
+  }
+)
+
+const toggleMenu = () => {
+  showMenu.value = !showMenu.value
+}
+
+const selectRate = (rate: number) => {
+  currentRate.value = rate
+  showMenu.value = false
+  emit('change', rate)
+}
+</script>
+
+<style lang="scss" scoped>
+.speed-control {
+  position: relative;
+}
+
+.speed-button {
+  display: flex;
+  align-items: center;
+  gap: 8rpx;
+  padding: 10rpx 20rpx;
+  background-color: rgba(255, 255, 255, 0.1);
+  border-radius: 8rpx;
+  cursor: pointer;
+  user-select: none;
+
+  &:hover {
+    background-color: rgba(255, 255, 255, 0.2);
+  }
+}
+
+.speed-text {
+  color: #fff;
+  font-size: 24rpx;
+}
+
+.arrow {
+  color: #fff;
+  font-size: 20rpx;
+}
+
+.speed-menu {
+  position: absolute;
+  bottom: 100%;
+  right: 0;
+  margin-bottom: 10rpx;
+  background-color: rgba(0, 0, 0, 0.9);
+  border-radius: 8rpx;
+  overflow: hidden;
+  box-shadow: 0 4rpx 12rpx rgba(0, 0, 0, 0.3);
+}
+
+.speed-option {
+  padding: 20rpx 40rpx;
+  color: #fff;
+  font-size: 28rpx;
+  text-align: center;
+  cursor: pointer;
+  user-select: none;
+  white-space: nowrap;
+
+  &:hover {
+    background-color: rgba(255, 255, 255, 0.1);
+  }
+
+  &.active {
+    color: #1989fa;
+    background-color: rgba(25, 137, 250, 0.1);
+  }
+
+  &:not(:last-child) {
+    border-bottom: 1rpx solid rgba(255, 255, 255, 0.1);
+  }
+}
+</style>
diff --git a/components/video-player/components/VolumeControl.vue b/components/video-player/components/VolumeControl.vue
new file mode 100644
index 0000000..fb00b1b
--- /dev/null
+++ b/components/video-player/components/VolumeControl.vue
@@ -0,0 +1,112 @@
+<template>
+  <view class="volume-control">
+    <view class="volume-icon" @click="toggleMute">
+      <text class="icon">{{ isMuted ? '🔇' : '🔊' }}</text>
+    </view>
+
+    <view v-if="showSlider" class="volume-slider-wrapper">
+      <slider
+        class="volume-slider"
+        :value="currentVolume"
+        :min="0"
+        :max="100"
+        @change="handleVolumeChange"
+        @changing="handleVolumeChanging"
+        activeColor="#1989fa"
+        backgroundColor="rgba(255, 255, 255, 0.3)"
+        block-size="12"
+      />
+    </view>
+  </view>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, watch } from 'vue'
+
+interface Props {
+  volume: number
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  volume: 100
+})
+
+const emit = defineEmits<{
+  change: [volume: number]
+}>()
+
+const showSlider = ref(false)
+const currentVolume = ref(props.volume)
+const isMuted = ref(false)
+const volumeBeforeMute = ref(props.volume)
+
+watch(
+  () => props.volume,
+  (newVolume) => {
+    currentVolume.value = newVolume
+    isMuted.value = newVolume === 0
+  }
+)
+
+const toggleMute = () => {
+  if (isMuted.value) {
+    // 取消静音
+    const volume = volumeBeforeMute.value || 50
+    currentVolume.value = volume
+    emit('change', volume)
+    isMuted.value = false
+  } else {
+    // 静音
+    volumeBeforeMute.value = currentVolume.value
+    currentVolume.value = 0
+    emit('change', 0)
+    isMuted.value = true
+  }
+}
+
+const handleVolumeChange = (e: any) => {
+  const volume = e.detail.value
+  currentVolume.value = volume
+  isMuted.value = volume === 0
+  emit('change', volume)
+}
+
+const handleVolumeChanging = (e: any) => {
+  currentVolume.value = e.detail.value
+}
+
+// 点击音量图标时切换滑块显示
+const toggleSlider = () => {
+  showSlider.value = !showSlider.value
+}
+</script>
+
+<style lang="scss" scoped>
+.volume-control {
+  display: flex;
+  align-items: center;
+  gap: 10rpx;
+  position: relative;
+}
+
+.volume-icon {
+  width: 60rpx;
+  height: 60rpx;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  cursor: pointer;
+
+  .icon {
+    font-size: 36rpx;
+  }
+}
+
+.volume-slider-wrapper {
+  width: 150rpx;
+}
+
+.volume-slider {
+  width: 100%;
+}
+</style>
diff --git a/components/video-player/composables/useVideoAPI.ts b/components/video-player/composables/useVideoAPI.ts
new file mode 100644
index 0000000..28feff7
--- /dev/null
+++ b/components/video-player/composables/useVideoAPI.ts
@@ -0,0 +1,73 @@
+// components/video-player/composables/useVideoAPI.ts
+import { ref } from 'vue'
+import { videoApi } from '@/api/modules/video'
+import type { IVideoInfo, VideoErrorType } from '@/types/video'
+
+/**
+ * 视频 API 调用管理
+ */
+export function useVideoAPI() {
+  const isLoading = ref(false)
+  const error = ref<{ type: VideoErrorType; message: string } | null>(null)
+
+  /**
+   * 获取视频播放信息
+   */
+  const fetchVideoInfo = async (params: {
+    id: number
+  }): Promise<IVideoInfo | null> => {
+    isLoading.value = true
+    error.value = null
+
+    try {
+      const response = await videoApi.checkVideo(params)
+
+      if (response.code === 0 && response.video) {
+        console.log('Video info fetched:', response.video)
+        return response.video
+      } else {
+        throw new Error(response.msg || '获取视频信息失败')
+      }
+    } catch (err: any) {
+      console.error('Failed to fetch video info:', err)
+      error.value = {
+        type: 'API_ERROR',
+        message: err.message || '获取视频信息失败，请稍后重试'
+      }
+      return null
+    } finally {
+      isLoading.value = false
+    }
+  }
+
+  /**
+   * 报告错误视频
+   */
+  const reportErrorVideo = async (params: {
+    chapterId: number
+    videoId: number
+    sort: number
+  }): Promise<void> => {
+    try {
+      await videoApi.addErrorCourse(params)
+      console.log('Error video reported:', params)
+    } catch (err) {
+      console.error('Failed to report error video:', err)
+    }
+  }
+
+  /**
+   * 清除错误
+   */
+  const clearError = () => {
+    error.value = null
+  }
+
+  return {
+    isLoading,
+    error,
+    fetchVideoInfo,
+    reportErrorVideo,
+    clearError
+  }
+}
diff --git a/components/video-player/composables/useVideoPlayer.ts b/components/video-player/composables/useVideoPlayer.ts
new file mode 100644
index 0000000..da09384
--- /dev/null
+++ b/components/video-player/composables/useVideoPlayer.ts
@@ -0,0 +1,189 @@
+// components/video-player/composables/useVideoPlayer.ts
+import { ref, computed } from 'vue'
+import { useVideoAPI } from './useVideoAPI'
+import { useVideoProgress } from './useVideoProgress'
+import type { IVideoInfo, IVideoPlayerProps, VideoErrorType } from '@/types/video'
+
+/**
+ * 视频播放器核心逻辑
+ */
+export function useVideoPlayer(props: IVideoPlayerProps) {
+  const videoAPI = useVideoAPI()
+  const videoProgress = useVideoProgress()
+
+  // 状态
+  const currentVideoData = ref<IVideoInfo | null>(null)
+  const currentIndex = ref(props.currentIndex)
+  const isSetFirstTime = ref(false)
+  const isChanging = ref(false)
+  const showError = ref(false)
+  const errorMessage = ref('')
+  const canRetry = ref(false)
+  const platform = ref('')
+
+  // 获取平台信息
+  // #ifdef APP-PLUS
+  platform.value = uni.getSystemInfoSync().platform
+  // #endif
+
+  // #ifdef H5
+  platform.value = 'h5'
+  // #endif
+
+  /**
+   * 计算视频 URL
+   */
+  const videoUrl = computed(() => {
+    if (!currentVideoData.value) return ''
+
+    if (currentVideoData.value.type === 0) {
+      // MP4 视频
+      return currentVideoData.value.mp4Url || currentVideoData.value.videoUrl || ''
+    } else {
+      // M3U8 视频
+      return currentVideoData.value.m3u8Url || ''
+    }
+  })
+
+  /**
+   * 计算封面图 URL
+   */
+  const posterUrl = computed(() => {
+    if (!currentVideoData.value) return ''
+
+    // 如果是 MP4 视频，可以使用 OSS 视频截图功能
+    if (currentVideoData.value.type === 0 && currentVideoData.value.mp4Url) {
+      return `${currentVideoData.value.mp4Url}?x-oss-process=video/snapshot,t_1,f_jpg`
+    }
+
+    return ''
+  })
+
+  /**
+   * 检查视频是否可以播放
+   */
+  const canPlayVideo = (videoInfo: IVideoInfo): boolean => {
+    // iOS 平台检查
+    if (platform.value === 'ios') {
+      if (videoInfo.type === 1 && !videoInfo.m3u8Url) {
+        return false
+      }
+    }
+
+    return true
+  }
+
+  /**
+   * 加载视频
+   */
+  const loadVideo = async (index: number) => {
+    if (index < 0 || index >= props.videoList.length) {
+      showError.value = true
+      errorMessage.value = '视频索引超出范围'
+      canRetry.value = false
+      return
+    }
+
+    const videoItem = props.videoList[index]
+    currentIndex.value = index
+
+    // 重置状态
+    isSetFirstTime.value = false
+    showError.value = false
+    errorMessage.value = ''
+    canRetry.value = false
+
+    // 调用 API 获取视频信息
+    const videoInfo = await videoAPI.fetchVideoInfo({
+      id: videoItem.id
+    })
+
+    if (!videoInfo) {
+      showError.value = true
+      errorMessage.value = videoAPI.error.value?.message || '获取视频信息失败'
+      canRetry.value = true
+      return
+    }
+
+    // 检查视频类型和 URL
+    if (videoInfo.type === 1 && !videoInfo.m3u8Url) {
+      // M3U8 视频但没有 URL，报告错误
+      await videoAPI.reportErrorVideo({
+        chapterId: videoInfo.chapterId,
+        videoId: videoInfo.id,
+        sort: videoInfo.sort
+      })
+
+      showError.value = true
+      errorMessage.value = '抱歉，本视频加密信息错误，已经提交错误信息，请过一段时间再来观看或联系客服'
+      canRetry.value = false
+      return
+    }
+
+    // 设置当前视频数据
+    currentVideoData.value = videoInfo
+
+    // 获取初始播放位置
+    const initialPosition = videoProgress.getInitialPosition(videoInfo)
+    videoProgress.updateCurrentTime(initialPosition)
+
+    return videoInfo
+  }
+
+  /**
+   * 切换视频
+   */
+  const changeVideo = async (newIndex: number) => {
+    if (isChanging.value) return
+
+    isChanging.value = true
+
+    try {
+      // 保存当前视频进度
+      if (currentVideoData.value) {
+        await videoProgress.saveNow(currentVideoData.value)
+      }
+
+      // 停止进度保存
+      videoProgress.stopSaving()
+
+      // 加载新视频
+      await loadVideo(newIndex)
+    } finally {
+      isChanging.value = false
+    }
+  }
+
+  /**
+   * 重试加载视频
+   */
+  const retry = () => {
+    loadVideo(currentIndex.value)
+  }
+
+  return {
+    // 状态
+    currentVideoData,
+    currentIndex,
+    isSetFirstTime,
+    isChanging,
+    showError,
+    errorMessage,
+    canRetry,
+    platform,
+    isLoading: videoAPI.isLoading,
+
+    // 计算属性
+    videoUrl,
+    posterUrl,
+
+    // 方法
+    loadVideo,
+    changeVideo,
+    retry,
+    canPlayVideo,
+
+    // 进度管理
+    videoProgress
+  }
+}
diff --git a/components/video-player/composables/useVideoProgress.ts b/components/video-player/composables/useVideoProgress.ts
new file mode 100644
index 0000000..f474a34
--- /dev/null
+++ b/components/video-player/composables/useVideoProgress.ts
@@ -0,0 +1,131 @@
+// components/video-player/composables/useVideoProgress.ts
+import { ref } from 'vue'
+import { videoStorage } from '@/utils/videoStorage'
+import { videoApi } from '@/api/modules/video'
+import type { IVideoInfo } from '@/types/video'
+
+/**
+ * 视频播放进度管理
+ */
+export function useVideoProgress() {
+  const currentTime = ref(0)
+  const isSaving = ref(false)
+  let saveTimer: any = null
+
+  /**
+   * 获取初始播放位置
+   * 合并本地和服务器的播放位置，取较大值
+   * 如果视频已经看完（播放位置 >= 总时长 - 5秒），则从头开始
+   */
+  const getInitialPosition = (videoInfo: IVideoInfo): number => {
+    // 从服务器获取播放位置
+    const serverPosition = videoInfo.userCourseVideoPositionEntity?.position || 0
+
+    // 从本地存储获取播放位置
+    const localPosition = videoStorage.getVideoPosition(videoInfo.id) || 0
+
+    // 返回较大的值
+    let position = Math.max(serverPosition, localPosition)
+
+    // 如果播放位置接近视频结尾（最后5秒内），则从头开始
+    const videoDuration = videoInfo.duration || 0
+    if (videoDuration > 0 && position >= videoDuration - 5) {
+      position = 0
+      console.log('Video already finished, reset to start')
+    }
+
+    console.log('Initial position:', {
+      server: serverPosition,
+      local: localPosition,
+      duration: videoDuration,
+      final: position
+    })
+
+    return position
+  }
+
+  /**
+   * 开始保存进度
+   * 每秒保存到本地
+   */
+  const startSaving = (videoInfo: IVideoInfo) => {
+    // 清除之前的定时器
+    stopSaving()
+
+    // 每秒保存到本地
+    saveTimer = setInterval(() => {
+      if (currentTime.value > 0) {
+        videoStorage.saveVideoPosition(
+          videoInfo.id,
+          Math.floor(currentTime.value),
+          videoInfo
+        )
+      }
+    }, 1000)
+  }
+
+  /**
+   * 停止保存进度
+   */
+  const stopSaving = () => {
+    if (saveTimer) {
+      clearInterval(saveTimer)
+      saveTimer = null
+    }
+  }
+
+  /**
+   * 保存进度到服务器
+   */
+  const saveToServer = async (videoId: number, position: number) => {
+    if (isSaving.value) return
+
+    try {
+      isSaving.value = true
+      await videoApi.saveCoursePosition({
+        videoId,
+        position
+      })
+      console.log('Progress saved to server:', { videoId, position })
+    } catch (error) {
+      console.error('Failed to save progress to server:', error)
+    } finally {
+      isSaving.value = false
+    }
+  }
+
+  /**
+   * 立即保存当前进度
+   */
+  const saveNow = async (videoInfo: IVideoInfo) => {
+    if (currentTime.value > 0) {
+      // 保存到本地
+      videoStorage.saveVideoPosition(
+        videoInfo.id,
+        Math.floor(currentTime.value),
+        videoInfo
+      )
+
+      // 保存到服务器
+      await saveToServer(videoInfo.id, Math.floor(currentTime.value))
+    }
+  }
+
+  /**
+   * 更新当前播放时间
+   */
+  const updateCurrentTime = (time: number) => {
+    currentTime.value = time
+  }
+
+  return {
+    currentTime,
+    isSaving,
+    getInitialPosition,
+    startSaving,
+    stopSaving,
+    saveToServer,
+    saveNow,
+    updateCurrentTime
+  }
+}
diff --git a/components/video-player/index.vue b/components/video-player/index.vue
new file mode 100644
index 0000000..df78e1f
--- /dev/null
+++ b/components/video-player/index.vue
@@ -0,0 +1,519 @@
+<template>
+  <view class="video-player-container">
+    <!-- 视频播放器 -->
+    <view class="video-wrapper">
+      <video
+        v-if="!player.showError.value && player.videoUrl.value"
+        :id="videoId"
+        :src="player.videoUrl.value"
+        :poster="player.posterUrl.value"
+        :controls="true"
+        :page-gesture="true"
+        :vslide-gesture="true"
+        :vslide-gesture-in-fullscreen="true"
+        :show-center-play-btn="true"
+        :show-fullscreen-btn="true"
+        :show-play-btn="true"
+        :show-progress="true"
+        :enable-play-gesture="true"
+        :enable-progress-gesture="true"
+        :object-fit="objectFit"
+        :autoplay="true"
+        :initial-time="initialTime"
+        class="video-element"
+        @play="play"
+        @pause="pause"
+        @ended="ended"
+        @timeupdate="timeupdate"
+        @error="error"
+        @fullscreenchange="fullscreenChange"
+        @waiting="waiting"
+        @loadedmetadata="loadedmetadata"
+      />
+      
+      <!-- 倒计时遮罩 - 使用 cover-view 在 APP 中显示 -->
+      <cover-view v-if="showCountdown" class="countdown-overlay">
+        <cover-view class="countdown-content">
+          <cover-view class="countdown-timer">
+            <cover-view class="countdown-number">{{ countdownRemaining }}</cover-view>
+            <cover-view class="countdown-text">秒后播放下一个视频</cover-view>
+          </cover-view>
+          
+          <cover-view class="countdown-actions">
+            <cover-view class="btn-cancel" @click="cancelCountdown">取消</cover-view>
+            <cover-view class="btn-replay" @click="replayVideo">重新播放</cover-view>
+            <cover-view class="btn-next" @click="playNext">立即播放</cover-view>
+          </cover-view>
+        </cover-view>
+      </cover-view>
+      
+      <!-- 错误显示 -->
+      <view v-if="player.showError.value" class="error-display">
+        <view class="error-content">
+          <view class="error-message">{{ player.errorMessage.value }}</view>
+          <button v-if="player.canRetry.value" class="btn-retry" @click="retry">重试</button>
+        </view>
+      </view>
+      
+      <!-- 加载中 -->
+      <view v-if="player.isLoading.value" class="loading-display">
+        <view class="loading-spinner"></view>
+        <text class="loading-text">加载中...</text>
+      </view>
+    </view>
+  </view>
+</template>
+
+<script setup lang="ts">
+import { ref, watch, onMounted, onUnmounted, nextTick } from 'vue'
+import { useVideoPlayer } from './composables/useVideoPlayer'
+import { videoStorage } from '@/utils/videoStorage'
+import type { IVideoPlayerProps, IVideoInfo } from '@/types/video'
+
+// 页面生命周期
+// @ts-ignore
+const onHide = typeof uni !== 'undefined' ? uni.onHide || (() => {}) : () => {}
+
+// Props
+const props = withDefaults(defineProps<IVideoPlayerProps>(), {
+  countdownSeconds: 5,
+  showWatermark: false,
+  watermarkText: '本课程版权归天津众妙之门科技有限公司所有，翻版必究!'
+})
+
+// Emits
+const emit = defineEmits<{
+  play: [videoInfo: IVideoInfo]
+  pause: [position: number]
+  fullscreen: [isFullscreen: boolean]
+  error: [error: { type: string; message: string }]
+  ended: [videoInfo: IVideoInfo]
+  timeupdate: [data: { currentTime: number; duration: number }]
+  'video-change': [newIndex: number]
+  'update:current-index': [newIndex: number]
+  'countdown-start': []
+  'countdown-cancel': []
+}>()
+
+// 使用 composables
+const player = useVideoPlayer(props)
+
+// 视频相关状态
+const videoId = 'video-player-' + Date.now()
+const videoContext = ref<any>(null)
+const duration = ref(0)
+const isPlaying = ref(false)
+const isFullScreen = ref(false)
+const showCountdown = ref(false)
+const countdownRemaining = ref(props.countdownSeconds)
+const objectFit = ref<'contain' | 'cover'>('contain')
+const initialTime = ref(0)
+let countdownTimer: any = null
+
+// 生命周期
+onMounted(async () => {
+  // 初始化视频上下文
+  videoContext.value = uni.createVideoContext(videoId)
+
+  // 加载视频信息
+  const videoInfo = await player.loadVideo(props.currentIndex)
+
+  if (videoInfo) {
+    // 设置初始播放位置（loadVideo 内部已经调用过 getInitialPosition）
+    // 这里再次获取是为了确保 initialTime 和 video 组件同步
+    const position = player.videoProgress.getInitialPosition(videoInfo)
+    initialTime.value = position
+    console.log('Set initial time:', position, 'for video:', videoInfo.id)
+    
+    // 如果有历史进度，使用 seek 跳转（因为 initial-time 可能不生效）
+    if (position > 0) {
+      setTimeout(() => {
+        videoContext.value?.seek(position)
+        console.log('Seek to position:', position)
+      }, 500) // 延迟 500ms 确保视频已加载
+    }
+    
+    // 开始保存进度
+    player.videoProgress.startSaving(videoInfo)
+  }
+})
+
+// 页面隐藏时保存进度
+onHide(() => {
+  console.log('Page hidden, saving progress...')
+  if (player.currentVideoData.value && player.videoProgress.currentTime.value > 0) {
+    // 立即保存到本地
+    videoStorage.saveVideoPosition(
+      player.currentVideoData.value.id,
+      Math.floor(player.videoProgress.currentTime.value),
+      player.currentVideoData.value
+    )
+    // 保存到服务器
+    player.videoProgress.saveToServer(
+      player.currentVideoData.value.id,
+      Math.floor(player.videoProgress.currentTime.value)
+    )
+  }
+})
+
+onUnmounted(() => {
+  console.log('Component unmounting, saving progress...')
+  
+  // 停止进度保存
+  player.videoProgress.stopSaving()
+
+  // 立即保存当前播放进度（同步保存到本地，异步保存到服务器）
+  if (player.currentVideoData.value && player.videoProgress.currentTime.value > 0) {
+    // 立即保存到本地
+    videoStorage.saveVideoPosition(
+      player.currentVideoData.value.id,
+      Math.floor(player.videoProgress.currentTime.value),
+      player.currentVideoData.value
+    )
+    // 保存到服务器（不等待完成）
+    player.videoProgress.saveToServer(
+      player.currentVideoData.value.id,
+      Math.floor(player.videoProgress.currentTime.value)
+    )
+  }
+
+  // 清除倒计时
+  if (countdownTimer) {
+    clearInterval(countdownTimer)
+  }
+
+  // 恢复竖屏
+  // #ifdef APP-PLUS
+  plus.screen.lockOrientation('portrait-primary')
+  // #endif
+})
+
+// 监听 currentIndex 变化（仅当外部主动修改时才触发）
+watch(
+  () => props.currentIndex,
+  async (newIndex, oldIndex) => {
+    // 只有当新值与组件内部维护的索引不同时才处理
+    // 这样可以避免组件内部切换视频时触发 watch
+    if (newIndex !== player.currentIndex.value) {
+      await player.changeVideo(newIndex)
+    }
+  }
+)
+
+// 事件处理
+const play = () => {
+  isPlaying.value = true
+  if (player.currentVideoData.value) {
+    emit('play', player.currentVideoData.value)
+  }
+}
+
+const pause = () => {
+  isPlaying.value = false
+  emit('pause', player.videoProgress.currentTime.value)
+  
+  // 暂停时保存进度
+  if (player.currentVideoData.value && player.videoProgress.currentTime.value > 0) {
+    videoStorage.saveVideoPosition(
+      player.currentVideoData.value.id,
+      Math.floor(player.videoProgress.currentTime.value),
+      player.currentVideoData.value
+    )
+    player.videoProgress.saveToServer(
+      player.currentVideoData.value.id,
+      Math.floor(player.videoProgress.currentTime.value)
+    )
+  }
+}
+
+const ended = () => {
+  if (player.currentVideoData.value) {
+    emit('ended', player.currentVideoData.value)
+
+    // 检查是否有下一个视频
+    if (player.currentIndex.value < props.videoList.length - 1) {
+      startCountdown()
+    }
+  }
+}
+
+const timeupdate = (e: any) => {
+  const currentTime = e.detail.currentTime
+  const videoDuration = e.detail.duration
+
+  player.videoProgress.updateCurrentTime(currentTime)
+  duration.value = videoDuration
+
+  emit('timeupdate', {
+    currentTime,
+    duration: videoDuration
+  })
+}
+
+const error = (e: any) => {
+  console.error('Video error:', e)
+  player.showError.value = true
+  player.errorMessage.value = '视频播放出错，请稍后重试'
+  player.canRetry.value = true
+
+  emit('error', {
+    type: 'VIDEO_LOAD_ERROR',
+    message: '视频播放出错'
+  })
+}
+
+const fullscreenChange = (e: any) => {
+  isFullScreen.value = e.detail.fullScreen
+
+  // #ifdef APP-PLUS
+  if (e.detail.fullScreen) {
+    // 进入全屏，锁定横屏
+    setTimeout(() => {
+      plus.screen.lockOrientation('landscape-primary')
+    }, 100)
+  } else {
+    // 退出全屏，恢复竖屏
+    setTimeout(() => {
+      plus.screen.lockOrientation('portrait-primary')
+    }, 100)
+  }
+  // #endif
+
+  emit('fullscreen', isFullScreen.value)
+}
+
+const waiting = () => {
+  // 视频缓冲中
+  console.log('Video waiting...')
+}
+
+const loadedmetadata = (e: any) => {
+  duration.value = e.detail.duration
+  console.log('Video metadata loaded, duration:', duration.value)
+}
+
+// 倒计时相关
+const startCountdown = () => {
+  showCountdown.value = true
+  countdownRemaining.value = props.countdownSeconds
+  emit('countdown-start')
+
+  countdownTimer = setInterval(() => {
+    countdownRemaining.value--
+
+    if (countdownRemaining.value <= 0) {
+      clearInterval(countdownTimer)
+      playNext()
+    }
+  }, 1000)
+}
+
+const cancelCountdown = () => {
+  if (countdownTimer) {
+    clearInterval(countdownTimer)
+    countdownTimer = null
+  }
+  showCountdown.value = false
+  emit('countdown-cancel')
+}
+
+const replayVideo = () => {
+  cancelCountdown()
+
+  // 重置播放位置并播放
+  initialTime.value = 0
+  player.videoProgress.updateCurrentTime(0)
+  
+  // 重新加载当前视频
+  player.loadVideo(player.currentIndex.value)
+}
+
+const playNext = async () => {
+  cancelCountdown()
+
+  const nextIndex = player.currentIndex.value + 1
+  if (nextIndex < props.videoList.length) {
+    await player.changeVideo(nextIndex)
+    
+    // 通知父组件更新 currentIndex
+    emit('update:current-index', nextIndex)
+    emit('video-change', nextIndex)
+
+    // 获取新视频的初始播放位置
+    if (player.currentVideoData.value) {
+      initialTime.value = player.videoProgress.getInitialPosition(player.currentVideoData.value)
+      player.videoProgress.startSaving(player.currentVideoData.value)
+    }
+  }
+}
+
+const retry = () => {
+  player.retry()
+}
+</script>
+
+<style lang="scss" scoped>
+.video-player-container {
+  width: 100%;
+  height: 100%;
+  position: relative;
+  background-color: #000;
+}
+
+.video-wrapper {
+  width: 100%;
+  height: 100%;
+  position: relative;
+}
+
+.video-element {
+  width: 100%;
+  height: 400rpx;
+}
+
+.error-display {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background-color: rgba(0, 0, 0, 0.8);
+}
+
+.error-content {
+  text-align: center;
+  padding: 40rpx;
+}
+
+.error-icon {
+  font-size: 80rpx;
+  margin-bottom: 20rpx;
+}
+
+.error-message {
+  color: #fff;
+  font-size: 28rpx;
+  line-height: 1.6;
+  margin-bottom: 30rpx;
+}
+
+.btn-retry {
+  background-color: #1989fa;
+  color: #fff;
+  border: none;
+  padding: 20rpx 40rpx;
+  border-radius: 8rpx;
+  font-size: 28rpx;
+}
+
+.loading-display {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  background-color: rgba(0, 0, 0, 0.5);
+}
+
+.loading-spinner {
+  width: 60rpx;
+  height: 60rpx;
+  border: 4rpx solid rgba(255, 255, 255, 0.3);
+  border-top-color: #fff;
+  border-radius: 50%;
+  animation: spin 1s linear infinite;
+}
+
+@keyframes spin {
+  to {
+    transform: rotate(360deg);
+  }
+}
+
+.loading-text {
+  color: #fff;
+  font-size: 28rpx;
+  margin-top: 20rpx;
+}
+
+.countdown-overlay {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background-color: rgba(0, 0, 0, 0.8);
+  z-index: 9999;
+}
+
+.countdown-content {
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  width: 600rpx;
+  margin-left: -300rpx;
+  margin-top: -150rpx;
+  text-align: center;
+}
+
+.countdown-timer {
+  margin-bottom: 60rpx;
+}
+
+.countdown-number {
+  color: #fff;
+  font-size: 32px;
+  font-weight: bold;
+  line-height: 1.2;
+  text-align: center;
+}
+
+.countdown-text {
+  color: #fff;
+  font-size: 16px;
+  line-height: 50rpx;
+  text-align: center;
+  margin-top: 20rpx;
+}
+
+.countdown-actions {
+  display: flex;
+  flex-direction: row;
+  justify-content: center;
+  align-items: center;
+  width: 100%;
+}
+
+.btn-cancel,
+.btn-replay,
+.btn-next {
+  padding: 0 20px;
+  text-align: center;
+  border-radius: 4px;
+  font-size: 14px;
+  height: 26px;
+  line-height: 26px;
+  color: #fff;
+  margin: 0 5px;
+  background-color: #666;
+}
+
+// .btn-cancel {
+//   background-color: #666;
+// }
+
+// .btn-replay {
+//   background-color: #ff9800;
+// }
+
+// .btn-next {
+//   background-color: #1989fa;
+// }
+</style>
diff --git a/pages/course/details/chapter.vue b/pages/course/details/chapter.vue
index 41d8299..3e5206c 100644
--- a/pages/course/details/chapter.vue
+++ b/pages/course/details/chapter.vue
@@ -7,21 +7,18 @@
     <view class="page-content" :style="{ height: contentHeight }">
       <!-- 视频播放器 -->
       <view v-if="videoList.length > 0" class="video-section">
-        <!-- <VideoPlayer
+        <VideoPlayer
           ref="videoPlayerRef"
-          :videoList="videoList"
-          :currentIndex="currentVideoIndex"
-          :noRecored="noRecored"
-          @end="handleVideoEnd"
-          @fullscreen="handleFullscreen"
-          @change="handleVideoChange"
-        /> -->
-        <AliyunPlayer
+          v-model:current-index="currentVideoIndex"
+          :video-list="videoList"
+          :countdown-seconds="5"
+        />
+        <!-- <AliyunPlayer
           ref="videoPlayerRef"
           :currentVideo="videoList[currentVideoIndex]"
           :currentVideoList="videoList"
           @unlockChangeVideo="changeVideoLock = false"
-        />
+        /> -->
       </view>
       
       <!-- 课程和章节信息 -->
@@ -48,12 +45,6 @@
           >
             <view class="video-info">
               <text class="video-title">【{{ video.type == "2" ? "音频" : "视频" }}】{{ index + 1 }}</text>
-              <!-- <wd-icon 
-                v-if="currentVideoIndex === index" 
-                name="play-circle" 
-                color="#258feb" 
-                size="14px"
-              /> -->
             </view>
           </view>
         </view>
@@ -113,11 +104,10 @@
 </template>
 
 <script setup lang="ts">
-import { ref, computed, onMounted, onUnmounted, nextTick } from 'vue'
-import { onLoad, onShow, onHide, onUnload } from '@dcloudio/uni-app'
+import { ref, computed } from 'vue'
+import { onLoad, onShow, onHide } from '@dcloudio/uni-app'
 import { courseApi } from '@/api/modules/course'
-// import VideoPlayer from '@/components/course/VideoPlayer.vue'
-import AliyunPlayer from '@/components/ali-video/index.vue'
+import VideoPlayer from '@/components/video-player/index.vue'
 import type { IChapterDetail, IVideo } from '@/types/course'
 
 // 页面参数
@@ -131,6 +121,7 @@ const noRecored = ref(false)
 const chapterDetail = ref<IChapterDetail | null>(null)
 const videoList = ref<IVideo[]>([])
 const currentVideoIndex = ref(0)
+const activeVideoIndex = ref(0)
 const currentTab = ref(0)
 const isFullScreen = ref(false)
 
@@ -184,20 +175,9 @@ const loadChapterDetail = async () => {
         const index = videoList.value.findIndex(v => v.id === res.data.current)
         if (index !== -1) {
           currentVideoIndex.value = index
+          activeVideoIndex.value = index
         }
       }
-
-      // 使用 nextTick 确保组件已经渲染完成
-      await nextTick()
-      if (videoPlayerRef.value) {
-        console.log('准备调用 init 方法')
-        await videoPlayerRef.value.init({
-          currentVideo: videoList.value[currentVideoIndex.value],
-          currentVideoList: videoList.value
-        }, false)
-      } else {
-        console.error('videoPlayerRef.value 为空，无法初始化播放器')
-      }
     }
   } catch (error) {
     console.error('加载章节详情失败:', error)
@@ -209,46 +189,7 @@ const loadChapterDetail = async () => {
  */
 const selectVideo = async (index: number) => {
   if (index === currentVideoIndex.value) return
-  
-  console.log('切换视频:', index, videoList.value[index])
   currentVideoIndex.value = index
-  
-  // 调用播放器的 changeVideo 方法
-  if (videoPlayerRef.value) {
-    await videoPlayerRef.value.changeVideo(videoList.value[index])
-  }
-}
-
-/**
- * 视频切换
- */
-const handleVideoChange = (index: number) => {
-  currentVideoIndex.value = index
-}
-
-/**
- * 视频播放结束
- */
-const handleVideoEnd = () => {
-  // 视频播放结束的处理已在 VideoPlayer 组件中完成
-}
-
-/**
- * 全屏变化
- */
-const handleFullscreen = (fullscreen: boolean) => {
-  isFullScreen.value = fullscreen
-  
-  // 全屏时锁定屏幕方向
-  // #ifdef APP-PLUS
-  if (fullscreen) {
-    plus.screen.unlockOrientation()
-    plus.screen.lockOrientation('landscape-primary')
-  } else {
-    plus.screen.unlockOrientation()
-    plus.screen.lockOrientation('portrait-primary')
-  }
-  // #endif
 }
 
 /**
@@ -267,42 +208,6 @@ const previewImage = (url: string) => {
     current: url
   })
 }
-
-/**
- * 页面显示
- */
-onShow(() => {
-  // 锁定竖屏
-  // #ifdef APP-PLUS
-  plus.screen.unlockOrientation()
-  plus.screen.lockOrientation('portrait-primary')
-  // #endif
-})
-
-/**
- * 页面隐藏
- */
-onHide(() => {
-  // 暂停视频
-  if (videoPlayerRef.value) {
-    videoPlayerRef.value.pause()
-  }
-})
-
-/**
- * 页面卸载
- */
-onUnload(() => {
-  // 停止视频
-  if (videoPlayerRef.value) {
-    videoPlayerRef.value.stop()
-  }
-  
-  // 解锁屏幕方向
-  // #ifdef APP-PLUS
-  plus.screen.unlockOrientation()
-  // #endif
-})
 </script>
 
 <style lang="scss" scoped>
@@ -362,7 +267,7 @@ onUnload(() => {
     gap: 10rpx;
 
     .video-item {
-      padding: 20rpx;
+      padding: 18rpx;
       margin-bottom: 10rpx;
       background-color: #f7f8f9;
       border-radius: 8rpx;
diff --git a/pages/course/details/course.vue b/pages/course/details/course.vue
index 669b7fc..6b7f211 100644
--- a/pages/course/details/course.vue
+++ b/pages/course/details/course.vue
@@ -32,8 +32,10 @@
         :chapters="chapterList"
         :catalogue="currentCatalogue"
         :userVip="userVip"
+        :showRenewBtn="showRenewBtn"
         @purchase="handlePurchase"
         @toVip="goToVip"
+        @renew="handleRenew"
         @click="handleChapterClick"
       />
     </view>
diff --git a/style/tailwind.css b/style/tailwind.css
index 9c44bd8..b734602 100644
--- a/style/tailwind.css
+++ b/style/tailwind.css
@@ -8,7 +8,6 @@
     --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
       "Courier New", monospace;
     --color-red-500: oklch(63.7% 0.237 25.331);
-    --spacing: 0.25rem;
     --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
     --default-transition-duration: 150ms;
     --default-transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
@@ -237,9 +236,6 @@
   .flex-shrink {
     flex-shrink: 1;
   }
-  .border-collapse {
-    border-collapse: collapse;
-  }
   .transform {
     transform: var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,);
   }
@@ -287,9 +283,6 @@
     --tw-ordinal: ordinal;
     font-variant-numeric: var(--tw-ordinal,) var(--tw-slashed-zero,) var(--tw-numeric-figure,) var(--tw-numeric-spacing,) var(--tw-numeric-fraction,);
   }
-  .underline {
-    text-decoration-line: underline;
-  }
   .ring {
     --tw-ring-shadow: var(--tw-ring-inset,) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color, currentcolor);
     box-shadow: var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow);
diff --git a/types/video.d.ts b/types/video.d.ts
index 7e1fa4b..e544531 100644
--- a/types/video.d.ts
+++ b/types/video.d.ts
@@ -1,210 +1,92 @@
 // types/video.d.ts
-/**
- * 视频相关类型定义
- * 完全基于原项目 medicine_app 的数据结构
- */
-
-import type { IApiResponse } from './book'
 
 /**
- * 视频基本信息
- * 对应原项目中的视频数据结构
+ * 视频信息
  */
 export interface IVideoInfo {
-  id: number                         // 视频 ID
-  title: string                      // 视频标题
-  type: '1' | '2' | string           // 类型: 1-视频 2-音频
-  video?: string                     // 阿里云视频 ID(原始)
-  videoId?: string                   // 阿里云视频 ID(处理后,移除等号)
-  videoUrl?: string                  // 视频 URL(普通视频)
-  m3u8Url?: string | null            // M3U8 地址(标准加密)
-  playAuth?: string                  // 播放凭证
-  sort?: number                      // 排序
-  chapterId?: number                 // 章节 ID
-  courseId?: number                  // 课程 ID
-  catalogueId?: number               // 目录 ID
-  userCourseVideoPositionEntity?: {
-    position: number                 // 服务器记录的播放位置(秒)
-  }
-  [key: string]: any                 // 允许其他字段
+  id: number
+  chapterId: number
+  type: 0 | 1 // 0: MP4, 1: M3U8
+  video: string // 视频ID
+  sort: number
+  duration: number // 视频时长（秒）
+  createTime: string
+  delFlag: number
+  playAuth?: string // 阿里云播放授权
+  videoUrl?: string // 视频URL（兼容字段）
+  m3u8Url?: string // M3U8流地址
+  mp4Url?: string // MP4视频地址
+  mtsHlsUriToken?: string // M3U8 Token
+  userCourseVideoPositionEntity?: IVideoPosition
 }
 
 /**
- * 视频数据(扩展)
- * 包含播放时间等额外信息
+ * 视频播放位置
  */
-export interface IVideoData extends IVideoInfo {
-  firstTime?: number                 // 初始播放时间(秒)
-  time?: number                      // 当前播放时间(秒)
+export interface IVideoPosition {
+  id: number
+  userId: number
+  videoId: number
+  position: number // 播放位置（秒）
+  createTime: string
+  updateTime: string
+  delFlag: number
 }
 
 /**
- * 本地存储的视频列表项
- * 存储在 localStorage 的 videoOssList 中
+ * 视频检查接口响应
  */
-export interface IVideoStorageItem {
-  id: number                         // 视频 ID
-  time: number                       // 播放时间(秒)
-  [key: string]: any                 // 其他视频信息
+export interface IVideoCheckResponse {
+  msg: string
+  code: number
+  video: IVideoInfo
 }
 
 /**
- * 检查视频请求参数
- * 对应 sociology/course/checkVideo 接口
+ * 视频播放器组件 Props
  */
-export interface ICheckVideoRequest {
-  id?: number                        // 视频 ID
-  video?: string                     // 视频标识
-  courseId?: number                  // 课程 ID
-  catalogueId?: number               // 目录 ID
-  chapterId?: number                 // 章节 ID
-  [key: string]: any                 // 允许其他参数
-}
-
-/**
- * 检查视频响应
- * 对应 sociology/course/checkVideo 接口返回
- */
-export interface ICheckVideoResponse extends IApiResponse {
-  video: IVideoInfo                  // 视频信息
-}
-
-/**
- * 保存播放位置请求参数
- * 对应 sociology/course/saveCoursePosition 接口
- */
-export interface ISaveCoursePositionRequest {
-  videoId: number                    // 视频 ID
-  position: number                   // 播放位置(秒)
-}
-
-/**
- * 保存播放位置响应
- * 对应 sociology/course/saveCoursePosition 接口返回
- */
-export interface ISaveCoursePositionResponse extends IApiResponse {
-  // 继承基础响应结构
-}
-
-/**
- * 记录错误视频请求参数
- * 对应 medical/course/addErrorCourse 接口
- * 用于记录 iOS 不支持的视频
- */
-export interface IAddErrorCourseRequest {
-  chapterId: number                  // 章节 ID
-  videoId: number                    // 视频 ID
-  sort: number                       // 排序
-}
-
-/**
- * 记录错误视频响应
- * 对应 medical/course/addErrorCourse 接口返回
- */
-export interface IAddErrorCourseResponse extends IApiResponse {
-  // 继承基础响应结构
-}
-
-/**
- * 章节详情
- * 用于视频列表组件
- */
-export interface IChapterDetail {
-  id: number                         // 章节 ID
-  title: string                      // 章节标题
-  imgUrl?: string                    // 章节图片
-  content?: string                   // 章节内容
-  questions?: string                 // 思考题
-  [key: string]: any                 // 其他字段
-}
-
-/**
- * 平台类型
- */
-export type PlatformType = 'ios' | 'android' | 'h5' | null
-
-/**
- * 屏幕方向类型
- */
-export type ScreenOrientationType = 'portrait-primary' | 'landscape-primary'
-
-/**
- * 播放器配置选项
- * 对应阿里云播放器配置
- */
-export interface IPlayerOptions {
-  id: string                         // 容器 ID
-  width: string                      // 宽度
-  height: string                     // 高度
-  autoplay?: boolean                 // 自动播放
-  playsinline?: boolean              // 内联播放
-  controlBarVisibility?: 'hover' | 'click' | 'always'  // 控制栏显示方式
-  useH5Prism?: boolean               // 使用 H5 播放器
-  qualitySort?: 'asc' | 'desc'       // 清晰度排序
-  isLive?: boolean                   // 是否直播
-  rePlay?: boolean                   // 是否重播
-  cover?: string                     // 封面图
-  
-  // 私有加密视频配置
-  vid?: string                       // 视频 ID
-  playauth?: string                  // 播放凭证
-  encryptType?: number               // 加密类型: 1-私有加密
-  playConfig?: {
-    EncryptType: string              // 加密类型名称
-  }
-  
-  // 标准加密/普通视频配置
-  source?: string                    // 视频地址
-  
-  // 组件配置
-  components?: Array<{
-    name: string
-    type: any
-    args?: any[]
-  }>
-  
-  // 皮肤布局
-  skinLayout?: Array<{
-    name: string
-    align?: string
-    x?: number
-    y?: number
-    children?: Array<{
-      name: string
-      align?: string
-      x?: number
-      y?: number
-    }>
+export interface IVideoPlayerProps {
+  videoList: Array<{
+    id: number
+    chapterId: number
+    video: string
+    sort: number
+    type?: 0 | 1
+    duration?: number
   }>
+  currentIndex: number
+  countdownSeconds?: number
+  showWatermark?: boolean
+  watermarkText?: string
 }
 
 /**
- * 全屏状态变化数据
+ * 视频播放器组件状态
  */
-export interface IScreenChangeData {
-  status: boolean                    // 全屏状态
-  primary: ScreenOrientationType     // 屏幕方向
+export interface IVideoPlayerState {
+  currentVideoData: IVideoInfo | null
+  currentTime: number
+  firstTime: number
+  isSetFirstTime: boolean
+  isFullScreen: boolean
+  showCountdown: boolean
+  countdownRemaining: number
+  showError: boolean
+  errorMessage: string
+  isLoading: boolean
+  isChanging: boolean
+  playbackRate: number
+  volume: number
 }
 
 /**
- * 播放时间记录数据
+ * 视频错误类型
  */
-export interface IRecordTimeData {
-  time: number                       // 播放时间(秒)
-  status?: string                    // 播放状态
-}
-
-/**
- * 错误提示数据
- */
-export interface IOpenShowData {
-  msg?: string                       // 错误消息
-}
-
-/**
- * 初始化数据
- */
-export interface IInitData {
-  currentVideo: IVideoInfo           // 当前视频
-  currentVideoList?: IVideoInfo[]    // 视频列表
+export enum VideoErrorType {
+  NETWORK_ERROR = 'NETWORK_ERROR',
+  VIDEO_LOAD_ERROR = 'VIDEO_LOAD_ERROR',
+  ENCRYPTION_ERROR = 'ENCRYPTION_ERROR',
+  PLATFORM_NOT_SUPPORTED = 'PLATFORM_NOT_SUPPORTED',
+  INVALID_PARAMS = 'INVALID_PARAMS',
+  API_ERROR = 'API_ERROR'
 }
diff --git a/utils/videoStorage.ts b/utils/videoStorage.ts
new file mode 100644
index 0000000..882d0f7
--- /dev/null
+++ b/utils/videoStorage.ts
@@ -0,0 +1,118 @@
+// utils/videoStorage.ts
+
+interface VideoPosition {
+  id: number
+  time: number
+  updateTime: string
+  [key: string]: any
+}
+
+/**
+ * 视频播放位置本地存储服务
+ */
+class VideoStorageService {
+  private readonly STORAGE_KEY = 'videoOssList'
+  private readonly MAX_STORAGE_COUNT = 50
+
+  /**
+   * 获取视频播放位置
+   * @param videoId 视频ID
+   * @returns 播放位置（秒）或 null
+   */
+  getVideoPosition(videoId: number): number | null {
+    const list = this.getVideoList()
+    const video = list.find((v) => v.id === videoId)
+    return video?.time || null
+  }
+
+  /**
+   * 保存视频播放位置
+   * @param videoId 视频ID
+   * @param time 播放位置（秒）
+   * @param videoData 视频数据
+   */
+  saveVideoPosition(videoId: number, time: number, videoData: any): void {
+    const list = this.getVideoList()
+    const index = list.findIndex((v) => v.id === videoId)
+
+    const newItem = {
+      ...videoData,
+      id: videoId,
+      time,
+      updateTime: new Date().toISOString()
+    }
+
+    if (index >= 0) {
+      list[index] = newItem
+    } else {
+      list.push(newItem)
+    }
+
+    this.setVideoList(list)
+    
+    // 自动清理旧数据
+    this.cleanOldData()
+  }
+
+  /**
+   * 清理旧数据（保留最近 50 个）
+   */
+  cleanOldData(): void {
+    const list = this.getVideoList()
+    
+    if (list.length > this.MAX_STORAGE_COUNT) {
+      // 按更新时间排序，保留最新的
+      const sorted = list.sort((a, b) => {
+        const timeA = new Date(b.updateTime || 0).getTime()
+        const timeB = new Date(a.updateTime || 0).getTime()
+        return timeA - timeB
+      })
+      
+      this.setVideoList(sorted.slice(0, this.MAX_STORAGE_COUNT))
+    }
+  }
+
+  /**
+   * 清除指定视频的播放位置
+   * @param videoId 视频ID
+   */
+  clearVideoPosition(videoId: number): void {
+    const list = this.getVideoList()
+    const filtered = list.filter((v) => v.id !== videoId)
+    this.setVideoList(filtered)
+  }
+
+  /**
+   * 清除所有播放位置
+   */
+  clearAll(): void {
+    uni.removeStorageSync(this.STORAGE_KEY)
+  }
+
+  /**
+   * 获取视频列表
+   */
+  private getVideoList(): VideoPosition[] {
+    try {
+      const data = uni.getStorageSync(this.STORAGE_KEY)
+      return data ? JSON.parse(data) : []
+    } catch (error) {
+      console.error('Failed to get video list from storage:', error)
+      return []
+    }
+  }
+
+  /**
+   * 设置视频列表
+   */
+  private setVideoList(list: VideoPosition[]): void {
+    try {
+      uni.setStorageSync(this.STORAGE_KEY, JSON.stringify(list))
+    } catch (error) {
+      console.error('Failed to set video list to storage:', error)
+    }
+  }
+}
+
+// 导出单例
+export const videoStorage = new VideoStorageService()